This Sunday, June 1, 2025, an exceptional astronomical phenomenon will be observable in Algeria, providing a remarkable celestial display for enthusiasts and sky-gazers alike. The Centre de recherche en astronomie, astrophysique et géophysique (CRAAG) has announced an extraordinary conjunction between the Moon , the planet Mars , and the star Regulus , visible to the naked eye shortly after sunset.
According to the statement published on CRAAG’s Facebook page, around 8:30 PM local time, observers will be able to spot this celestial trio in the western horizon, at an altitude of approximately 50 degrees. The Moon , Mars , and Regulus , which is the brightest star in the Leo constellation, will be positioned at a maximum angular distance of around 5 degrees, marking a spectacular closeness.
Algeria: An Opportunity to Observe the Red Planet and a Bright Star
This phenomenon is classified as an astronomical conjunction , a configuration where several celestial bodies appear close to each other in the sky, even though they are separated by millions of kilometers in space. This type of proximity is relatively rare, generating significant interest as it allows us to simultaneously observe different celestial objects with greater ease.
Mars, often referred to as the Red Planet , is a frequent subject of interest for amateur astronomers due to its distinctive color and significance in space exploration. Regulus, on the other hand, is a giant white star of considerable brightness, easily identifiable in the Leo constellation. The presence of the Moon in this configuration enhances the beauty of the spectacle and facilitates the spotting of the entire trio.
This conjunction offers an excellent educational opportunity , enabling observers to explain astronomical concepts related to conjunctions, planetary orbits, and constellations. Several astronomy clubs and associations in Algeria will organize observation sessions to guide the public through this experience.
To fully enjoy this phenomenon in Algeria, it is advisable to settle in an open area with a clear view of the western horizon, away from urban light pollution. Using binoculars can enhance visibility, although observing with the naked eye remains entirely feasible. This proximity between the Moon , Mars , and Regulus this Sunday promises an exceptional moment to gaze at the sky and appreciate the beauty of the cosmos, inviting exploration and contemplation of the heavens.